Open Access. Powered by Scholars. Published by Universities.®

Transportation Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

4,839 Full-Text Articles 4,639 Authors 1,543,606 Downloads 101 Institutions

All Articles in Transportation Engineering

Faceted Search

4,839 full-text articles. Page 1 of 130.

Combined Behavioral And Engineering Approach To Preventing Highway Fatalities, Benjamin Blandford, Reginald Souleyrette, Caitlin N. Pope, Tony Fields, Erin Lammers-Staats 2023 University of Kentucky

Combined Behavioral And Engineering Approach To Preventing Highway Fatalities, Benjamin Blandford, Reginald Souleyrette, Caitlin N. Pope, Tony Fields, Erin Lammers-Staats

Kentucky Transportation Center Research Report

Traditional, single-discipline highway safety approaches can be augmented through multidisciplinary approaches that consider both engineering and behavioral interventions (e.g., education, enforcement, public outreach campaigns). Leveraging a systems-based conceptual framework of roadway safety, multiple forms of statistical and geospatial analysis, and SPF modeling and network screening, this report proposes and demonstrates methods for unpacking the influence of behavioral-related factors on crash occurrences and outcomes. The primary focus is on behaviors targeted in the Strategic Highway Safety Plan — aggressive driving, distracted driving, impaired driving, and driving without proper restraint (i.e., seatbelts). Based on application of these methods, the report highlights ...


Toward A Safer Transportation System For Senior Road Users, Saba Doulabi 2022 Louisiana State University and Agricultural and Mechanical College

Toward A Safer Transportation System For Senior Road Users, Saba Doulabi

LSU Doctoral Dissertations

Senior pedestrians and drivers (65 years and older) are among the most vulnerable road users. As the population of seniors rise, concerns regarding older adults' traffic safety are growing. The advantages of using autonomous vehicles, innovative vehicle technologies, and active transportation are becoming more widely recognized to improve seniors' mobility and safety. This behooves researchers to further investigate senior road users’ safety challenges and countermeasures. This study contributes to the literature by achieving two main goals. First, to explore contributing factors affecting the safety of older pedestrians and drivers in the current transportation system. Second, to examine seniors’ perceptions, preferences ...


Does Transit Service Reliability Influence Ridership?, Srinivas S. Pulugurtha, Raunak Mishra, Sravya L. Jayanthi 2022 University of North Carolina at Charlotte

Does Transit Service Reliability Influence Ridership?, Srinivas S. Pulugurtha, Raunak Mishra, Sravya L. Jayanthi

Mineta Transportation Institute Publications

This research focused on analyzing the association between transit service reliability indicators and ridership. Further, the effect of road network, demographic, socioeconomic, and land use characteristics on transit service reliability was analyzed. The analysis was conducted at a bus stop level. Bus arrival/departure and ridership data from the Charlotte Area Transit System (CATS) was obtained. The road network, demographic, socioeconomic, and land use characteristics were captured within 0.25-mile and 0.50-mile buffers. Pearson correlation analysis was conducted to understand the association between road network, demographic, socioeconomic, and land use characteristics and bus transit service reliability measures. The results ...


Effect Of Weather Events On Travel Time Reliability And Crash Occurrence, Sonu Mathew, Srinivas S. Pulugurtha 2022 University of North Carolina at Charlotte

Effect Of Weather Events On Travel Time Reliability And Crash Occurrence, Sonu Mathew, Srinivas S. Pulugurtha

Mineta Transportation Institute Publications

The magnitude of the effect of adverse weather conditions on road operational performance varies with the type of weather condition and the road characteristics of the road links and adjacent links. Therefore, the relationship between weather and traffic is always a concern to traffic engineers and planners, and they have extensively explored ways to integrate weather information into transportation systems. Understanding the influence of weather on operational performance and safety helps traffic engineers and planners to proactively plan and manage transportation systems. The main objective of this research is to evaluate the effect of adverse weather conditions on travel time ...


Best Practices For Highway Project Scoping, Jeff Jasper, Samantha Wright, Jon Wilcoxson, Robin Baskette, Christopher Van Dyke 2022 University of Kentucky

Best Practices For Highway Project Scoping, Jeff Jasper, Samantha Wright, Jon Wilcoxson, Robin Baskette, Christopher Van Dyke

Kentucky Transportation Center Research Report

One of the Kentucky Transportation Cabinet’s (KYTC) foremost priorities in fulfilling its mission is to deliver successful projects — quality solutions that meet the defined scope and are delivered on time and within the budget specified in the Highway Plan. When a project scope is not clearly defined or uncertain, revisions may take place after the project is already underway, leading to delays or overpromising what can be delivered. Ideally, a reliable, decisive project scope is defined in the early phases of the highway project development process. The scope should include a project definition that clearly communicates the project scope ...


Evaluation Of The Operation Of Lighthouses And Beacons In The Gulf Of Suez, Tamer Saber Abdelhafez Elsayed 2022 World Maritime University

Evaluation Of The Operation Of Lighthouses And Beacons In The Gulf Of Suez, Tamer Saber Abdelhafez Elsayed

World Maritime University Dissertations

No abstract provided.


Business Model Innovation In Marine Engine Maintanance, Dofilia Sinangui Kaloia 2022 World Maritime University

Business Model Innovation In Marine Engine Maintanance, Dofilia Sinangui Kaloia

World Maritime University Dissertations

No abstract provided.


Comparative Analysis Of Cloud-Based Server And Conventional Server Of Simulators For Marine Engineering, Jose Maria Razon Nalus 2022 World Maritime University

Comparative Analysis Of Cloud-Based Server And Conventional Server Of Simulators For Marine Engineering, Jose Maria Razon Nalus

World Maritime University Dissertations

No abstract provided.


Optimizing Transportation Systems With Information Provision, Personalized Incentives And Driver Cooperation, Sayeeda Ayaz 2022 University of Massachusetts Amherst

Optimizing Transportation Systems With Information Provision, Personalized Incentives And Driver Cooperation, Sayeeda Ayaz

Doctoral Dissertations

Poor performance of the transportation systems has many detrimental effects such as higher travel times, increased travel costs, higher energy consumption, and greenhouse gas emissions, etc. This thesis optimizes the transportation systems by addressing the traffic congestion problem and climate change impact resulting from the inefficient operation of these systems.

I first focus on the key player of the transportation systems e.g., human being/traveler, and model travelers' route choice behavior with real-time information. In this study, I define looking-ahead behavior in route choice as a traveler's taking into account future diversion possibilities enabled by real-time information in ...


Understanding The Safety And Usability Of Personal Vehicles For Non-Driving Individuals With Disabilities And Their Families/Care Providers, Anil R. Kumar, Hannah Bowman 2022 San Jose State University

Understanding The Safety And Usability Of Personal Vehicles For Non-Driving Individuals With Disabilities And Their Families/Care Providers, Anil R. Kumar, Hannah Bowman

Mineta Transportation Institute Publications

The connections between shared personal vehicles of individuals with disabilities (IWDs) and their household family members play an important role in the mobility, overall health, and well-being of all involved actors, yet this topic remains mostly overlooked within publicly available research. Families that include a non-driving IWD are more likely to be low-income, and often struggle with the costs of operating a family car but, due to insufficient public transportation options, they own vehicles despite their prohibitive cost. This exploratory study utilized the Systems Engineering Initiative for Patient Safety (SEIPS) model, a framework focused on assessing the interplaying sociotechnical factors ...


Analysis Of Traffic Crash Data In Kentucky 2017-2021, Paul Ross, Eric Green, Christopher Blackden, Christopehr Van Dyke, Michael Fields, Riana Tanzen 2022 University of Kentucky

Analysis Of Traffic Crash Data In Kentucky 2017-2021, Paul Ross, Eric Green, Christopher Blackden, Christopehr Van Dyke, Michael Fields, Riana Tanzen

Kentucky Transportation Center Research Report

Each year the Kentucky Transportation Center publishes Analysis of Traffic Crash Data in Kentucky, a report that reviews state-level crash data from the previous five years. This report summarizes crash data for 2017 through 2021. In addition to presenting a review of crash data, the report also contains safety performance functions (SPFs) for nine roadway types. Because SPFs were derived using 2017-2021 data, the models predict crashes for a five-year period. Users must adjust the model by adding a coefficient of 1/5 to models to avoid overestimating crashes by a factor of five.


Large Eddy Simulations Of Wind Shear From Passing Vehicles Under A Freeway Overpass, Hamid Rahai, Assma Begum 2022 California State University, Long Beach

Large Eddy Simulations Of Wind Shear From Passing Vehicles Under A Freeway Overpass, Hamid Rahai, Assma Begum

Mineta Transportation Institute Publications

California is moving toward a 100% clean energy future, and expanded wind energy will be a major component of the state’s future energy portfolio. Innovations in wind energy resources will move California closer to achieving its goal. To gain a better understanding of transient pressure and the wind shear generated at the bridge poles from passing vehicles, this study performed large-eddy simulations of a vehicle (also called an Ahmed body) moving under a freeway overpass at a distance of 0.75 w (width) from the bridge poles. Results include transient contours of mean velocity, turbulent kinetic energy, vorticity, and ...


Kentucky Traffic Collision Facts 2021 Report, Paul Ross, Eric Green, Christopher Blackden, Michael Fields, Kenneth Agent, Christopher Van Dyke, Ed Harding 2022 University of Kentucky

Kentucky Traffic Collision Facts 2021 Report, Paul Ross, Eric Green, Christopher Blackden, Michael Fields, Kenneth Agent, Christopher Van Dyke, Ed Harding

Kentucky Transportation Center Research Report

Each year the Kentucky Transportation Center publishes the Traffic Collision Facts report in collaboration with the Commonwealth of Kentucky, Kentucky State Police, and Kentucky Transportation Cabinet. This is the fiscal year 2022 report, which covers collisions reported during calendar year 2021. For the year, 734 fatal crashes, 20,117 nonfatal crashes, and 88,440 property damage only crashes occurred on the state’s roadways. Overall, 109,291 crashes were reported in calendar year 2021, a 8.4 percent increase over calendar year 2020.


Monocular Camera Viewpoint-Invariant Vehicular Traffic Segmentation And Classification Utilizing Small Datasets, Amr Yousef, Jeff Flora, Khan Iftekharuddin 2022 Old Dominion University

Monocular Camera Viewpoint-Invariant Vehicular Traffic Segmentation And Classification Utilizing Small Datasets, Amr Yousef, Jeff Flora, Khan Iftekharuddin

Electrical & Computer Engineering Faculty Publications

The work presented here develops a computer vision framework that is view angle independent for vehicle segmentation and classification from roadway traffic systems installed by the Virginia Department of Transportation (VDOT). An automated technique for extracting a region of interest is discussed to speed up the processing. The VDOT traffic videos are analyzed for vehicle segmentation using an improved robust low-rank matrix decomposition technique. It presents a new and effective thresholding method that improves segmentation accuracy and simultaneously speeds up the segmentation processing. Size and shape physical descriptors from morphological properties and textural features from the Histogram of Oriented Gradients ...


Damage Detection And Damage Localization In Bridges With Low-Density Instrumentations Using The Wave-Method: Application To A Shake-Table Tested Bridge, Mehran Rahmani, Xintong Ji, Sovann Reach Kiet 2022 California State University, Long Beach

Damage Detection And Damage Localization In Bridges With Low-Density Instrumentations Using The Wave-Method: Application To A Shake-Table Tested Bridge, Mehran Rahmani, Xintong Ji, Sovann Reach Kiet

Mineta Transportation Institute Publications

This study presents a major development to the wave method, a methodology used for structural identification and monitoring. The research team tested the method for use in structural damage detection and damage localization in bridges, the latter being a challenging task. The main goal was to assess capability of the improved method by applying it to a shake-table-tested prototype bridge with sparse instrumentation. The bridge was a 4-span reinforced concrete structure comprising two columns at each bent (6 columns total) and a flat slab. It was tested to failure using seven biaxial excitations at its base. Availability of a robust ...


2022 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Derek S. Young, Eric Green, Kenneth R. Agent 2022 University of Kentucky

2022 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Derek S. Young, Eric Green, Kenneth R. Agent

Kentucky Transportation Center Research Report

Each year Kentucky Transportation Center researchers conduct a safety belt usage survey to estimate Kentucky’s statewide safety belt usage rate. In 2022, the safety belt usage rate in Kentucky was 86.72 percent, which represents a 3.06 decline over 2021. Safety belt usage peaked in 2018 at 89.99 percent. Declines in safety belt usage rate over the past couple years may be attributable in part to changes in driver behaviors and traffic dynamics following the COVID-19 pandemic. If Kentucky wants to increase safety belt usage rates, the state may need ramp up enforcement of safety belt laws ...


Generalizing The Negative Binomial-Lindley Model For Accounting Subpopulation Heterogeneity In Crash Data Analysis, A S M Mohaiminul Islam 2022 The University of Maine

Generalizing The Negative Binomial-Lindley Model For Accounting Subpopulation Heterogeneity In Crash Data Analysis, A S M Mohaiminul Islam

Electronic Theses and Dissertations

Crash data are often highly dispersed; it may also include a large amount of zero observations or have a long tail. The traditional Negative Binomial (NB) model cannot model these data properly. To overcome this issue, the Negative Binomial-Lindley (NB-L) model has been proposed as an alternative to the NB to analyze data with these characteristics. Research studies have shown that the NB-L model provides a superior performance compared to the NB when data include numerous zero observations or have a long tail. In addition, crash data are often collected from sites with different spatial or temporal characteristics. Therefore, it ...


Master Plan Of Water Distribution System For Srinagar And Hanumanth Nagar Wards - Using Epanet, Sneha G, Nikhil B, K Galajalaxmi Prof., Syed Abdulla Furkhan, Narasimhamurthy H, Jagadish Babu Mr. 2022 Department of Civil Engineering. RV College of Engineering Bengaluru, India

Master Plan Of Water Distribution System For Srinagar And Hanumanth Nagar Wards - Using Epanet, Sneha G, Nikhil B, K Galajalaxmi Prof., Syed Abdulla Furkhan, Narasimhamurthy H, Jagadish Babu Mr.

Undergraduate Academic Research Journal

Every metropolitan city requires a master plan which provides a conceptual layout to guide future growth and development of the city. One of the reasons for water crisis in developing countries is due to inefficient and wasteful water management systems. In this research paper EPANET is used to build the water network model, optimize it, compute head-loss, velocity of flow in each node and flow in each pipe in the water distribution. It can be used to consider and understand the growth of the demand of city with the design period of 30 years. The above knowledge is used to ...


Simulating The Impact Of Urban Sprawl In Spatiotemporal Variation Of Air Pollution In Bangalore Region Using Ml And Gis., Gagan Vernekar, Dhanush B. Naidu, K Galajalaxmi Prof., Kiran K, Manjunatha Havinal 2022 Department of Civil Engineering. RV College of Engineering Bengaluru, India

Simulating The Impact Of Urban Sprawl In Spatiotemporal Variation Of Air Pollution In Bangalore Region Using Ml And Gis., Gagan Vernekar, Dhanush B. Naidu, K Galajalaxmi Prof., Kiran K, Manjunatha Havinal

Undergraduate Academic Research Journal

The rapid expansion of urban areas due to rise in population and economic growth is increasing the additional demand on natural resources thereby causing land-use changes especially in megacities. Bengaluru, being a city of India’s high-tech industry has been facing deteriorating environmental conditions. This paper deals with studying the problems by designing the Machine Learning (ML) model which helps in detecting the Green Cover Change, Urban sprawl, Air Quality Parameters concentration in Bangalore region for the future and analyse them with Geographic Information System (GIS) data’s using Remote Sensing (RS) satellite images of various years of Bangalore city ...


Time Motion Study On Soil Protection Works, Santosh Tekkannavar 2022 Department of Civil Engineering, Ramaiah Institute of Technology, Bengaluru, Karnataka, India

Time Motion Study On Soil Protection Works, Santosh Tekkannavar

Undergraduate Academic Research Journal

Soil protection works have become popular due to their immense contribution to protecting the building from land sliding. A building structure requires a stable foundation to ensure best construction and durability. There are various engineering techniques in soil protection works, this paper consists of the Soil nailing procedure adopted in the Northwest Commercial multi-use (NWCM) Project of Karle Infra Pvt. Ltd Company, currently executed by the vendor Geoengineering Pvt. Ltd. Soil nailing technique is used to stabilize the existing slope and construct retaining walls from top down. Steel nails are used as a reinforcement of soil which are drilled and ...


Digital Commons powered by bepress